manipulateThreadsOnVGChartzFrontPage.user.js

// ==UserScript==
// @name        Manipulate threads under chosen sections on VGChartz front page
// @description Manipulates threads in the chosen sections of the forums on the VGChartz front page. To customize, edit this script (instructions in the script).
// @namespace   Xiyng
// @version     1.1
// @include     http://www.vgchartz.com
// @include     http://www.vgchartz.com/
// @include     https://www.vgchartz.com
// @include     https://www.vgchartz.com/
// @grant       none
// ==/UserScript==

//-----------------------//
// CONFIGURATION SECTION //
//-----------------------//

// If you want to add custom sections here, just add them between the
// brackets, comma-separated from the other sections, and surrounded
// with quotation marks. Don't put two sections between the same
// quotation marks! New sections can be either on the same line or on
// another line (as long as they're between the brackets). The worst
// that can happen if you make a mistake is that the script stops
// working.
var affectedSections = [
    "Politics Discussion"
];

// You can choose what to do with affected threads. The possible
// choices are listed here, and you can make the choice later below.
var displayChoices = {
    hide:      1,  // Hides the posts entirely.
    dim:       2,  // Dims the posts according to the dim strength set below.
    highlight: 3   // Highlights the section with the color set below.
};

// Choose what will be done to the affected sections.
// Possible options are listed above under 'displayChoices'.
// Just replace the word 'hide' with some other word from the
// 'displayChoices' section.
var displayChoice = displayChoices.hide;

// Choose anything from 0.0 to 1.0.
var dimStrength = 0.5;

// Most common colors should work.
var highlightColor = "red";

//------------------------------------------//
// CONFIGURATION SECTION ENDS, MAGIC STARTS //
//------------------------------------------//

document.addEventListener("DOMContentLoaded", initialize);
window.addEventListener("load", initialize);

var executed = false;

function initialize() {
    if (executed) {
        return;
    }
    hideThreads(displayChoice);
    executed = true;
}

function hideThreads(displayChoice) {
    var rightBar = document.getElementById("rightbar");
    var threads = rightbar.getElementsByClassName("forum_post");
    for (var i = 0; i < threads.length; i++) {
        var thread = threads[i];
        var section = thread
            .getElementsByTagName("span")[0]
            .getElementsByTagName("a")[0]
            .textContent
            .trim();
        if (affectedSections.indexOf(section) >= 0) {
            switch (displayChoice) {
                case displayChoices.hide:
                    thread.parentNode.style.display = "none";
                    break;
                case displayChoices.dim:
                    thread.parentNode.style.opacity = 1.0 - dimStrength;
                    break;
                case displayChoices.highlight:
                    thread
                        .getElementsByTagName("span")[0]
                        .getElementsByTagName("a")[0]
                        .style.color = highlightColor;
                    break;
                default:
                    console.log("Looks like you screwed up configuration.");
            }
        }
    }
}